#dependence-plot

Question 1: Single choice

In a SHAP summary plot of a readmission model, both high and low values of num_lab_procedures appear on both sides of zero: for some patients they raise the prediction, for others they lower it. What is the most likely explanation?

It interacts with other features of the model1
The feature has no effect on the model's predictions2
The SHAP values were estimated from too few samples to be trusted3
The feature was encoded with the wrong sign before training4

Timed test